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1. What are negelected in the simplified small-signal hybrid-pi model of bipolar transistor?
    ans) The parasitic resistances.

2. Which of the following relates the small Base-Emitter input voltage vbe to collector current ic?
    a) rp
    b) r0
    c) re
    d) rb
    e) rc
     ans) a)

3. Which of the above resistances (see question 2) relates the small Collector-Emitter input voltage vbc to collector current ic?
    ans) b)

4. Do the quiz in the applet.